# HALOWERK buerowerk — Candidate CSV Email Export

> HALOWERK buerowerk — Candidate CSV Email Export is a paid API for AI agents from buero.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-17).

Accepts a list of candidate email addresses and returns a CSV export of matching candidate data from the Baumarkt (construction/trade) job market context.

## Facts

- Endpoint: POST https://buero.halowerk.com/v1/baumarkt/mail/candidate-csv-export?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-buerowerk-candidate-csv-email-export-848fa55c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_akStaIN0Tc0lWcJDSM9gl

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability halowerk-buerowerk-candidate-csv-email-export-848fa55c -d '<json body>'
```

Example prompt: Export candidate data as a CSV for these email addresses: alice@example.com, bob@example.com, carol@example.com — I need it for our Baumarkt recruiting pipeline.

## When to prefer this

Use this endpoint when you need to bulk-export candidate records from the HALOWERK Baumarkt (construction/trade) job market database using email addresses as lookup keys, particularly for feeding data into ATS or HR systems. Prefer this over manual lookups when processing 1–500 candidates at once in a recruiting or HR automation workflow.

## Known failure modes

- Empty or missing emails array returns a validation error
- Emails array exceeding 500 items is rejected
- Individual email strings exceeding 320 characters are rejected
- No matching candidates found for provided emails returns empty CSV or empty result set
- Payment not completed via x402/USDC results in 402 Payment Required response
- Malformed email strings may be rejected or silently skipped

## How this service works

HALOWERK buerowerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.

## Output

A JSON response containing CSV-formatted candidate data for the submitted email addresses, suitable for download or import into HR/ATS systems. Each row corresponds to a matched candidate record keyed by email.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "emails": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 320,
    "minLength": 1
   },
   "maxItems": 500,
   "minItems": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-buerowerk-candidate-csv-email-export-848fa55c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from buero.halowerk.com](https://www.zero.xyz/host/buero.halowerk.com/llms.txt)